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Pollution Overview
Home > Pollution Overview

Pollution Overview

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Pollution

Pollution, also called environmental pollution, the addition of any substance (solid, liquid, or gas) or any form of energy (such as heat, sound, or radioactivity) to the environment at a rate faster than it can be dispersed, diluted, decomposed, recycled, or stored in some harmless form.

Major Kinds of Pollution

The major kinds of pollution, usually classified by environment, are

  1. Air pollution.
  2. Water pollution.
  3. Land pollution.

Modern society is also concerned about specific types of pollutants, such as noise pollution, light pollution, and plastic pollution.

Pollution of all kinds can have negative effects on the environment and wildlife and often impacts human health and well-being.

Air Pollution

Air pollution results from the introduction of a range of substances into the atmosphere from a wide variety of sources. It can cause both short term and long term effects on human health, wildlife, but also on the wider environment.

Pollution is the process of making land, water, air or other parts of the environment dirty and not safe or suitable to use. This can be done through the introduction of a contaminant into a natural environment, but the contaminant doesn't need to be real. Things as simple as light, sound and temperature can be considered pollutants when introduced artificially into an environment.

Land Pollution

Land can become polluted by household garbage and by industrial waste. Organic material was the largest component of the garbage generated. Commercial or industrial waste is a significant portion of solid waste.

Water pollution

Water pollution happens when chemicals or dangerous foreign substances are introduced to water, including chemicals, sewage, pesticides and fertilizers from agricultural runoff, or metals like lead or mercury.

Causes of Air Pollution

  • Air pollution occurs when things that aren't normally there are added to the air. A common type of air pollution happens when people release particles into the air from burning fuels. This pollution looks like soot, containing millions of tiny particles, floating in the air. 
  • Another common type of air pollution is dangerous gases, such as sulfur dioxide, carbon monoxide, nitrogen oxides and chemical vapors. These can take part in further chemical reactions once they are in the atmosphere, creating acid rain and smog.
  • Other sources of air pollution can come from within buildings, such as secondhand smoke. 
  • Finally, air pollution can take the form of greenhouse gases, such as carbon dioxide or sulfur dioxide, which are warming the planet through the greenhouse effect.